Differing birth weight among infants of US-born blacks, African-born blacks, and US-born whites
Differing birth weight among infants of US-born blacks, African-born blacks, and US-born whites
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DOI：
10.1056/nejm199710233371706
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发表时间：
1997-10-23
影响因子：
158.5
通讯作者：
Collins, JW
中科院分区：
文献类型：
--
作者：
David, RJ;Collins, JW
背景在美国，黑人妇女的婴儿出生体重低于白色妇女的婴儿。黑人出生体重较低与社会或遗传因素的关系尚不清楚。方法我们使用1980年至1995年伊利诺伊州的生命记录，以确定三组妇女出生的婴儿出生体重的分布-美国-出生的黑人，非洲出生的黑人，和美国-结果美国44，046名婴儿的平均出生体重出生的白色妇女为3446克，非洲裔黑人妇女的3135名婴儿为3333克，美国黑人妇女的43,322名婴儿为3333克。出生的黑人女性为3089 g。在美国的婴儿中，低出生体重（体重低于2500克）的发生率为13.2%。出生的黑人妇女和7.1%的非洲裔黑人妇女的婴儿，相比之下，4.3%的美国出生的白色妇女的婴儿（相对风险，分别为3.1和1.6）。在风险最低的女性中，（20至39岁，本人和配偶受过12年教育，产前护理早，怀孕2次或3次，以前没有流产史），非洲裔黑人妇女婴儿出生体重低的比率（3.6%）更接近美国出生的白人妇女的婴儿比率（2.4%），以及美国出生的白人妇女的婴儿比率。出生的黑人妇女仍然很高（7.5%）。结论非洲出生的黑人妇女和美国出生的黑人妇女的婴儿出生体重模式，出生的白色妇女之间的关系比美国婴儿的出生体重更密切。天生的黑人女性(C)1997年，马萨诸塞州医学会。
Background In the United States, the birth weights of infants of black women are lower than those of infants of white women. The extent to which the lower birth weights among blacks are related to social or genetic factors is unclear.Methods We used vital records for 1980 through 1995 from Illinois to determine the distribution of birth weights among infants born to three groups of women - U.S.-born blacks, African-born blacks, and U.S.-born whites.Results The mean birth weight of 44,046 infants of U.S.-born white women was 3446 g, that of 3135 infants of African-born black women was 3333 g, and that of 43,322 infants of U.S.-born black women was 3089 g. The incidence of low birth weight (weight less than 2500 g) was 13.2 percent among infants of U.S.-born black women and 7.1 percent among infants of African-born black women, as compared with 4.3 percent among infants of U.S, born white women (relative risks, 3.1 and 1.6, respectively). Among the women at lowest risk (those 20 to 39 years old, with 12 years of education for themselves and their spouses, early prenatal care, gravida 2 or 3, and no previous fetal loss), the rate of low birth weight in infants of African-born black women (3.6 percent) was closer to the rate in infants of U.S, born white women (2.4 percent), and the rate in infants of U.S.-born black women remained high (7.5 percent).Conclusions The birth-weight patterns of infants of African-born black women and U.S.-born white women are more closely related to one another than to the birth weights of infants of U.S.-born black women. (C) 1997, Massachusetts Medical Society.